* {
  padding: 0;
  margin: 0;
}
.juzhong,
#wrap .inner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate3d(-50%, -50%, 0);
}
.juzhong:hover,
#wrap .inner:hover {
  background: yellow !important;
}
#wrap {
  position: relative;
  margin: 0 auto;
  width: 400px;
  height: 400px;
  background: pink;
}
#wrap .inner:nth-child(1) {
  width: 200px;
  height: 200px;
  background: deeppink;
}
#wrap .inner:nth-child(2) {
  width: 100px;
  height: 100px;
  background: red;
}
